ddns-scripts: no longer break using nslookup and option force_ipversion=1

Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>

net/ddns-scripts/Makefile

@@ -9,10 +9,10 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=ddns-scripts
 # Version == major.minor.patch
 # increase on new functionality (minor) or patches (patch)
-PKG_VERSION:=2.7.4
+PKG_VERSION:=2.7.5
 # Release == build
 # increase on changes of services files or tld_names.dat
-PKG_RELEASE:=4
+PKG_RELEASE:=1
 
 PKG_LICENSE:=GPL-2.0
 PKG_MAINTAINER:=Christian Schoenebeck <christian.schoenebeck@gmail.com>

net/ddns-scripts/files/dynamic_dns_functions.sh

@@ -1062,10 +1062,12 @@ get_registered_ip() {
 		__RUNPROG="$__PROG $lookup_host >$DATFILE 2>$ERRFILE"
 		__PROG="hostip"
 	elif [ -n "$NSLOOKUP" ]; then	# last use BusyBox nslookup
-		[ $force_ipversion -ne 0 -o $force_dnstcp -ne 0 ] && \
-			write_log 14 "Busybox nslookup - no support to 'force IP Version' or 'DNS over TCP'"
+		[ $force_dnstcp -ne 0 ] && \
+			write_log 14 "Busybox nslookup - no support for 'DNS over TCP'"
 		[ -n "$NSLOOKUP_MUSL" -a -n "$dns_server" ] && \
 			write_log 14 "Busybox compiled with musl - nslookup don't support the use of DNS Server"
+		[ $force_ipversion -ne 0 ] && \
+			write_log 5 "Busybox nslookup - no support to 'force IP Version' (ignored)"
 
 		__RUNPROG="$NSLOOKUP $lookup_host $dns_server >$DATFILE 2>$ERRFILE"
 		__PROG="BusyBox nslookup"

net/ddns-scripts/files/update_nsupdate.sh

@@ -15,9 +15,9 @@
 #
 # variable __IP already defined with the ip-address to use for update
 #
-__TTL=600		#.preset DNS TTL (in seconds)
-__RRTYPE __PW __TCP
-__PROG=$(which nsupdate)			# BIND nsupdate ?
+local __TTL=600		#.preset DNS TTL (in seconds)
+local __RRTYPE __PW __TCP
+local __PROG=$(which nsupdate)			# BIND nsupdate ?
 [ -z "$__PROG" ] && __PROG=$(which knsupdate)	# Knot nsupdate ?
 
 [ -z "$__PROG" ]     && write_log 14 "'nsupdate' or 'knsupdate' not installed !"